TDK-EPC, a group company of the TDK Corporation, presents a new standard series of splitter transformers from EPCOS for DSL applications. The series comprises 8 inductance values ranging from 1 to 10 mH.
Thanks to their dimensions of only 9.6 x 7.8 x 10.9 mm³, the new transformers with EP7 cores permit highly space-saving designs. In addition to good symmetry properties, the components are distinguished by very low signal distortions. Their low DC resistance, which is between 0.8 and 20 Ω depending on the type, ensures minimal losses. The transformers are RoHS-compatible.
In addition to the new standard series, TDK-EPC continues to supply customer-specific transformers with corresponding cores and inductance values. TDK-EPC also offers film capacitors used in the design of splitters.
Glossary
- DSL: Digital Subscriber Line. DSL designates a series of standards for the high-speed transmission of data between the subscriber and the exchange via twisted copper pairs.
- Splitters: Systems comprising transformers and capacitors used to separate the telephone and DSL signals. Splitters are needed both at the subscriber access and the exchange.
Main applications
- Splitters for separating DSL and telephone signals
Main features and benefits
- Low space requirement
- Good symmetry properties
- Low signal distortion
Key data
Inductance
[mH]
| Resistance [Ω] | Stray inductance
[μH] | Self- capacitance
[pF] | Test voltage [V] | Ordering code |
| 1.0 | 0.8 | 0.7 | 33 | 1500 | B82803A0105A007 |
| 1.5 | 1.4 | 1.4 | 37 | 1500 | B82803A0155A007 |
| 2.2 | 2.4 | 2.7 | 40 | 1500 | B82803A0225A007 |
| 2.7 | 3.6 | 2.9 | 45 | 1500 | B82803A0275A007 |
| 3.3 | 5.0 | 4.0 | 45 | 1000 | B82803A0335A007 |
| 4.7 | 5.8 | 5.3 | 45 | 1000 | B82803A0475A007 |
| 6.8 | 9.8 | 10 | 45 | 1000 | B82803A0685A007 |
| 10 | 20 | 13 | 45 | 800 | B82803A0106A007 |
About TDK-EPC Corporation
TDK-EPC Corporation (TDK-EPC), a TDK group company, is a leading manufacturer of electronic components, modules and systems headquartered in Tokyo, Japan. TDK-EPC has emerged from the combination of the electronic components business of TDK and the EPCOS Group and markets its products under the product brands, TDK and EPCOS.
The product portfolio includes ceramic, aluminum electrolytic and film capacitors, ferrites and inductors, high-frequency components such as surface acoustic wave (SAW) filter products and modules, piezo and protection components, and sensors. With this product spectrum TDK-EPC offers a broad range of products and solutions of outstanding value from a single source and focuses on demanding markets in the areas of information and communication technology and automotive, industrial and consumer electronics. The company has design and manufacturing locations and sales offices in Asia, Europe, and in North and South America.
Further information on the products can be found under 
www.epcos.com/xdsl
Please forward reader inquiries to:
EPCOS AG
Fax +49 89 636-22471
marketing.communications@epcos.com
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